WILL MARK BRAINLIEST The drawing shows three
square school buildings that
enclose a grassy play area that
is shaped like a right triangle.
If building D has an area of
22,500 square yards and
building E has an area of
40,000 square yards, what is
the PERIMETER of building F?

Answers:

The perimeter of building F is 1000 yards

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

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